Water-heater.



A. H. HARD. WATER HEATER.

APPLICATION F'ILED JAN. 21, 1913.

Y Patented Mar. 10, 1914,

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WATER HEATER.

APPLIGATION FILED JAN. 21, 1913.

Patented Mar. 10, 1914,

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ITED rATnnT oer ron we ees rR 9 r vie s a arms- WATER-HEATER.

Specification of Letters Patent.

.Pe QetedMer- Q 1.9.

Applicat ion file d aniiary 313. Serial N 0. 7 135123.

,J O aZ Z whom it may concern:

it. known th'at I, AoeUs'r .VIIE-NRY HARD,

a oi'ti ze hof the .United States," residing at .Keyv'anee, .in thecounty of Henry and State 'of Illinois, have invented certain new anduseful Improvements lVaterJ-Ieaters, of

white the l'follo wing is specification, refertively small and,therefore, the water willbe heated to a higher degree.

Another object ofthe invention isto constfuct atone-in which thewate'rsurrounds the fire-box and then passes through the fireboX by means ofthe water tubes, after which it passes over the fire-box and out througha circulating pipe. It will thus be seen that the water is acted uponthree times, that is to say while it passes through the side walls,while passing through the water tubes, and while passing over the roofof a fire-box.

With these and other objects in view this invention consists of certainnovel combinations, constructions, and arrangements of parts as will behereinafter fully described and claimed.

In the accompanying drawings :Figure 1 is a perspective view of theboiler with the smoke pipe removed. Fig. 2 is a sectional view along theline 2-2, in Fig. 5. Fig. 3 is a section along the line 33, in Fig. 2.Fig. 4 is a section along the line 1-4, in Fig. 2. Fig. 5 is a frontelevation of the boiler with part of the front wall broken away. Fig. 6is a front elevation of the upper portion of the boiler. Fig. 7 is aperspective view of the frame of the boiler with one of the side wallsbroken away.

Referring to the accompanying drawings it will be seen that thisinvention comprises a supporting frame 10 which constitutes the ash pit,the upper wall forming the grate 11 and the front wall being providedwith the doorway 12 closed by the door 13. The fire-box comprises theupper and lower sections 14 and 15 which are supported by the supportinframe 10. The lower section 14: is provide with hollow side walls 16which the bed of coals.

lead fro m the hollow rear wall 17. ..This

lower fra nejforms the main portion of the fire-box, and itis thisportion whit-hzhol'ds It will,thereforgbenoted that the water whichenters the rearwall 17 through'the inlet 18 will extend aboutthree sidesof the bed of coals andthat, therefore,

this water willbe heated a "certain amount before passing out of theside wall into "the upper chamberllothrough the openings 19. .Theuppersection is provided with the hollow side walls 20 which leadfro'm thehollow rear wall 21. The front wall 22 is also:hol-

low,.but 1s separated from the side walls by a 'partition23 so that thewater which ehters the front wall22' will have to pass through the tubes2 1 in order to reach the rear wall.

.lt should alsobe noted that this front wall provided with a passageway25 positioned above the tubes 21 so that the tubes may be cleaned ofsoot when necessary.

The water from the inlet pipe 18 passes along the side walls 16 and upthrough the openings 19 into the front wall 22. From here it passesthrough the tubes 24: into the rear wall 21 and backs up into the sidewalls 20 so that the sides of the boiler will be prevented from becomingoverheated by the fire in the fire-box. After the water has passedthrough the tubes 24-. it will be very hot since the tubes break it upinto a number of relatively small streams, thus giving it a chance to beheated to a higher degree than if it passed through the fire-box in asolid mass. As soon. as water passes into the rear wall it passes upthrough the openings 26 into the cover section 21. This cover section ishollow and is provided with a well 28 so that a smoke pipe for conveyingthe products of combustion to the chnnney may enter the fire-box throughthis well. The water passes over the fire-box and is therefore, kept ata high degree of heat and passes out of the cover section through theoutlet pipe 29,

The water can be carried to any point desired or if desired may becirculated through a suitable heating system and returned to the inletpipe to be again heated. The front walls of the boiler are covered by afacing 30 which is provided with a door 31 for closing the clean-outopening 25. The door 32 for the fire-box is also hinged to the facing 30as is also the door 13 of the ash plt.

Having thus described the invention what is claimed as new, is

1. A boiler comprising a body portion having upper and lower sections,said upper section being provided with a plurality of hollow walls,tubes connecting the hollow walls of said upper section and passingthrough the fire-box of said boiler, said lower section being providedwith hollow walls communicating with one of the hollow walls of saidupper section whereby water entering said lower section will passthrough its hollow walls and into one of the hollow walls of said uppersection and through the tubes into a second wall of said upper section,and a hollow top for said boiler forming a cover for the fire-box, saidtop communicating with the second hollow wall of said upper section andprovided with an outlet whereby the water from said second hollow wallof said upper section will pass through the hollow top across thefire-box and out through the outlet.

2. A boiler comprising a body portion, said body portion comprising asupporting section forming an ash pit, a second section constituting thelower portion of a fire-box resting upon said supporting section, saidsecond section being provided with hollow walls having outlet openingsat one end and provided with an inlet opening, an upper section for thefire-box resting upon said second section and provided with hollowwalls, one of the walls being in communication with the outlet openingsof said second section, tubes connecting the walls of said upper sectionand passing through the firebox, one of the walls of said upper sectionbeing provided with an outlet opening, and a hollow cover for thefire-box resting upon said upper section and provided with an inletopening communicating with the outlet opening of said upper section andwith an outlet opening upon the opposite side of said fire-box from itsinlet opening.

In testimony whereof I hereunto affix my signature in presence of twowitnesses.

AUGUST HENRY HARD.

Witnesses:

R. B, GLEDDEN, A. ERRETT, Jr.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

